+ 1

Vector input fill?

https://code.sololearn.com/cO1Tdr5in85S/#cpp So i'm simply trying to fill a vector with integers via user input. How can I make this work properly? I want the vector contents to be ints rather than strings. And I can't seem to get multi-digit numbers to work either. I want the input to be numbers separated by commas. I just can't get it to work properly.

16th Feb 2019, 4:30 AM
Daniel Cooper
Daniel Cooper - avatar
3 Respuestas
+ 1
You should create some variable, n for example, that is responsible for the current number If i points to a digit (s[i] >= '0' && s[i] <= '9'), than n = n * 10 + s[i] - '0'; If i points on a comma, then add n to the vector and then make n = 0 Or, more simpe way to do it, ask user for number of digits and get numbers with a for loop(for(int i =0;i<len;i++){cin>>x;vect.push_back(x)) This way, you can avoid using string
16th Feb 2019, 4:57 AM
Дмитрий Мазыло
Дмитрий Мазыло - avatar
+ 1
Can you give me an example? I can't figure it out. If not, I'll just experiment tomorrow.
16th Feb 2019, 6:02 AM
Daniel Cooper
Daniel Cooper - avatar
0
Firs method: getline(cin,s); For(int i=0;i<s.size();i++){ If(s[i]>='0' && s[i]<='9'){ n=n*10+s[i]-'0'; } If(s[i]==','){ Vect.push_back(n); n=0; } } Second method: cin>>n; For(int i =0;i<n;i++){ Int x; Cin>>x; Vect.push_back(x); }
16th Feb 2019, 1:37 PM
Дмитрий Мазыло
Дмитрий Мазыло - avatar